A random sample of dogs at different animal shelters in a city shows that 8 of the 65 dogs are puppies. The city's animal shelters collectively house 1,170 dogs each year. About how many dogs in all of the city's animal shelters are puppies?

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

Re-do the question and enter the picture